Review Article
Hydrogen Sulfide and Cellular Redox Homeostasis
Table 1
The types of common oxygen-free radicals.
| Radicals | Chemical formulas | Electron structures |
| Superoxide anion | | | Hydroxyl radical | | | Perhydroxyl radical | | | Alkoxyl radical | | | Alkyl peroxide radical | | | Hydrogen peroxide | H2O2 | | Singlet oxygen | 1O2 | |
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